There isn't and if one of those people were President, the thread title would be the same with a name change. But those people aren't President, Trump is so his name gets attached to it. And since he's openly advocating for it, he gets the credit and the blame.
This is what happens when someone is President. It doesn't matter what someone else would have done because no one else has the job. You critique the person in office against what he's actually doing, not against what someone else might have done.
So the failing falls on Trump, unless he comes out and pushes the GOP to change said plan. The GOP isn't going to push anything that they know Trump will veto so he has some leverage in the final bill.
And you can be conservative and thing this bill is terrible. It doesn't have to be unique to also be terrible. Consistently terrible isn't better than uniquely so. That isn't to say this bill is terrible...unless you care about debt and deficits as we've claimed for the last 12 years. You don't cut taxes when the economy doesn't need the stimulus, when you're not also cutting spending or when there's no discernible benefit to doing so.