Let's use kickboxing as an example: In Japan, America, Netherlands kickboxing started out as Karate in most instances
I do not agree.
I think kickboxing like MMA is rule set: what is allowed and what isn't.
Euro KB did had guys with different backgrounds and I think usually no one then cared too much.
Later special gyms for KB had appeared and main aim was to teach for competitions.
Yes there are karate dojos that are heavily competition based as well but they all teach the fundamentals of karate for self defense palm strikes, ridge hands, knife hands, groin strikes, chokes/sweeps etc. (not taught in kickboxing for example but are all part of Kihon and Kata).
KB usually ( in europe ) does have more impact from boxing than it is assumed.
Boxing is specialized craft and unlike with karate.......
When you have any gloves, it isn't nor karate nor JJJ nor specialised grappling anymore.
Yeah, and kicks there.
Clinch time limit and strikes limit in clinch if enforced with rule book.
It isn't nor MT nor karate anymore, like semi contact karate isn't karate and kick light kicboxing isn't KB anymore too.
Semi contact had different rule sets too: like he hits you or attempts to hit you, then you conuter him and he get something.
You wait until panel will decide how to score this and you continue after this.
Or next variant: continue without interrupts and think not to hit too hard ( for judges ).
Damn, it isn't karate.
Karate, JJJ etc are more close to the same MMA, KB than this.
Foot sweeps might be taught in kickboxing, under xx rule sets to kick below ankle with intent to disbalance is allowed.
U.S kickboxing usually is PAK type: above waist kicks are allowed.
Euro KB is : low kick, full contact and K-1 type rules ( more close to Glory KB rules ) for ams.
FC is more close to PAK KB.