Some of you are funny.
The point of the relevance question is that the people who are demanding only relevant witnesses have no power to make that decision. You dont. I dont. The talking heads on TV don't. The House Managers don't.
The only ones who have that power are senators, if they can get a group of 51 of them to agree. Not even the chief Justice has that power, unless the Senate cedes it to him.
And the funnier thing is that some people will still argue the point.
One minor correction. In an earlier post I said you "have to" allow both sides to call witnesses. That's not actually correct. If witnesses are called, I'm confident that they will allow both sides to call witnesses, but they don't actually have to. They only have to allow whatever 51 senators say they have to allow.