I can agree that not many republican senators are looking out for the ordinary American working people. I wish most could be replaced.
But if you have an excellent conservative agenda, it is totally meaningless if you can not get the congress to co-operate with you. Reagan got lot of his agenda passed through congress even though majority congress was democrat. Because Reagan seldom antagonized others. He had tons of friends in congress.
It is very easy to make enemies and much harder to cultivate friends. Any senator or congressman who has very very few friends in congress will be unable to get anything passed.
A president, however, is a different matter. If Cruz is elected president, McConnell's days as majority leader are numbered. His successor may well be Jeff Sessions.
At that point, I would submit that Cruz and the Senate could have a very productive relationship.
Basically, we differ on just who it is that is "unlikable" within the GOP Senate caucus. You say it is Cruz. I would contend that the true jerks are 30-or-40-or-so of his colleagues.
For example, I believe I'd enjoy sharing a table and having a beer with Cruz, Lee and Sessions. So would you, I imagine. Is there anybody else in the GOP Senate caucus that we might add to this trio? How many of them would we just as soon never have to shake their hand?