Good grief it is silly to say Cruz supporters are banned/boycotted. Because you have a favorable opinion of Cruz does not mean that I personally MUST read your thread anymore than you need to upset yourself reading pro Trump threads. They are here for whoever chooses and should be banned only if offensive.
My boycotting your Cruz thread means nothing more than I dislike the man and avoid upsetting myself with it. You are free to post whatever non offensive materials Jim allows and it seems to me he only draws a line at those who would prefer Hillary. Honesty is your friend!
You have no idea what threads I read (although my posting history is public), nor do I know that about you. Your “boycotting” a positive thread about Cruz is an invisible, private act, which nobody would ever notice unless you made a public scene about it ... which is what the OP seems to be advocating.