Your examples were leftism. Republicanism isn't conservatism. They are all leftists to some degree, even including Trump. Conservatists advocate nearly no governance.

Again I ask for any counter argument?

(Trump is much more conservative than most though, yet he still advocates big government in the areas of military, police state, infrastructure, etc)

Conservatism is about letting people do what they want, except for egregious abuses. And for privatizing almost every function of the government.