When I first came, it was more heavily Cruz. Last week, a bunch of them have gotten the boot.
You got here just as things were finally sorting themselves out as far as who seemed to have the best chance. Many/most wanted the strongest conservative (me included) which was Cruz, but had Trump as the second choice. At that time, some of us saw the writing on the wall and opted to go all-in for the guy who looked like he had the best chance of winning it all and the rifts appeared.
Understand that those who got bumped did not have it happen because of who they supported - it was other actions that got them booted/suspended.
You may have noted the fundraising drive that is always going on - far too many use the services provided by FR but do not donate to it. I personally consider that a hypocritical status since most of those same folks hate the welfare state we have become and opine that folks should carry their own weight if at all possible.
If you have yet to donate, I invite you to do so that FR remains viable.
Happy FReeping.