Now, that just doesn't match my memory of the actual platform Kamala ran on. I did a bit of digging. Let's see if she really had culture war nonsense as her entire platform. I've numbered the basic campaign issues she talked about from a quick summary to give some concise proportions. By my count below there are 17 major campaigning issues, some are borderline as to whether they could be called 'culture war nonsense' or not, but I'll err on the side of calling it bullshit if its borderline.
By my count numbers 1 (abortion) , 6 (gun control) 8 (civil rights for trannies), and 15 (legalize weed) are all very definitely what you would call culture war nonsense. Albeit, given both abortion and legalising weed have majority support, are they still mere bullshit? well, lets err on the generous side and say they are 'culture wars nonsense' even if the majority of Americans support them. There is also 4 (border bill) which is culture war bullshit but pandering to your side of the aisle, but lets be generous call it culture war nonsense anyway shall we? So 5 out of 17.
On the other hand, numbers 2 (economy), 3 (taxes), 5 (housing) 7 (voting) 9 (Healthcare), 10 (legal), 11 (minimum wage) 12 (small businesses) 13 (foreign policy) 14 (crime), and 16 (financial regulation) are not in the slightest 'culture war nonsense'
Taken all in all, your preconception seems to be pretty ill-conceived. It seems to me to be more the case that the right wing scream about trannies and people like you, lets be charitable, lets say you misremember the Dem platforms as though it was what the Reps says it was, rather than taking it at face value.
anyway, TLDR, you're wrong. Not only were 'culture war nonsense' not the whole platform, they weren't even the majority of the platform. So, not just wrong but quite badly wrong, then.
(1) Abortion
Eliminate the filibuster to restore the Roe v. Wade precedent on abortion
(2) Economy
Ban corporate price gouging on food and groceries
(3) Taxes
Will not raise taxes for those earning less than $400,000 a year
Roll back Trump’s tax cuts for the wealthiest Americans
Enact a minimum tax for billionaires
Increase the tax rate on long-term capital gains to 28% for those earning at least $1 million a year
Expand the child tax credit to $6,000 for families with newborns
Quadruple the tax on stock buybacks
(4) Immigration
Sign the bipartisan border security bill
(5) Housing
Provide first-time homebuyers with up to $25,000 for down payments, plus more generous support for first-generation homeowners
Build 3 million more rental units and affordable homes
Outlaw new forms of price fixing by corporate landlords
(6) Guns
Ban assault weapons and high-capacity magazines
Require universal background checks for gun sales
(7) Voting
Sign the John Lewis Voting Rights Act and the Freedom to Vote Act
(8) Civil rights
Pass the Equality Act to protect LGBTQ+ Americans from discrimination
(9) Health care
Extend the $35 cap on insulin and $2,000 cap on out-of-pocket spending to all Americans
Make tax credit enhancements for health care premiums permanent
Launch a National Health Equity Initiative to address health challenges that disproportionately impact Black men.
Take on pharmacy benefit managers
Have Medicare cover in-home health care
(10) Legal issues
Ensure that no former president has immunity for crimes committed while in office
Require Supreme Court justices to comply with ethics rules
Impose term limits on Supreme Court justices
(11) Labor
Raise the minimum wage
Eliminate taxes on tips
Establish paid family and medical leave
End sub-minimum wages for tipped workers and people with disabilities
Double the number of apprenticeships
End four-year college degree requirements for federal jobs where appropriate
Limit businesses from "unnecessarily" using criminal arrest histories, convictions, and credit scores in employment decisions
Sign the pro-labor PRO Act and the Public Service Freedom to Negotiate Act
(12) Small businesses
Generate 25 million new business applications
Expand the startup expense tax deduction for new businesses from $5,000 to $50,000
Increase the share of federal contract dollars going to small businesses
(13) Foreign policy
Secure hostage and cease-fire deals between Israel and Hamas
(14) Crime
Double the Justice Department’s resources to go after transnational cartels and fentanyl
(15) Marijuana
Legalize recreational marijuana
(16) Financial regulation
Enact a regulatory framework for cryptocurrency
(17) Technology
Extend the expired Affordable Connectivity Program to support internet access
