That they hate some of all the other people the consevative voters hate, and they are happy to starve if the group they hate starve too.
It is a stupid premise I know, but you can see posts about evil things the gop does, and somehow "centrists" find a way to blame the democrats for that.
And still, we will see conservatives disguising as centrists blame all of that to the democrats because they let them do it.