This such a pitiful argument that I'll only give you a few of the reasons why this is just sad.
1) No one is supporting them BECAUSE they are truckers, they are supporting them because their cause is just and right. It could be barbers, restaurant workers or anyone else. People are supporting a just cause that just so happens to include a movement spearheaded by truckers.
2) The Republicans SHOULD be voting against bills involving the private pensions of truckers who are the employees of private companies. The government has no business being involved n this. I know you think government should completely run everyone's life but there is literally ZERO hypocrisy in Republicans not supporting government intervention in private business issues.
3) This whole line of argument is sooooooooooo dumb and no one falls for it anymore. "If you don't support my bill that includes 9 horrible things and one good thing, so you are against the one good thing." This doesn't fool anyone anymore. Not anyone. Even if it WAS good for the Republicans to support intervention into private pensions, that would still not be reason to support a bill that was filled with bad things just to get that one through. Your train of thought is insanely flawed. It's like saying, "My bill allows abortion up to 2 years after birth, raises tax rates to 90%, allows warrantless spying by the IRS and provides funds to help the homeless. So if you don't support this bill, you clearly don't care about the homeless." Nobody falls for that kind of mindless drivel anymore. Sorry to have to be the one to tell you that.