The answer is clearly no, because a transaction backlog means people have to wait for their tx to go through and have no guarantee that they'll go through at all, thus they stay away in droves and the miners get no fees.
Let's put a bullet in the head of this argument once and for all.
If people drive away, it frees up space in blocks, it's a self-correcting problem that nicely filters out people that thought they needed the Bitcoin-level bulletproof security level and finally realize they didn't.