Honesty will bring a resolution. Maybe not the one you want, but it will get you somewhere. If you sit down and tell your lead what you feel is going on... and make it a polite, constructive conversation, not just saying, "You suck.", then you will quickly figure out if he is willing to adapt or not. Maybe he doesn't realize what is going on because nobody has actually talked to him about it. Maybe he does know, but has low self-esteem and will want you to leave for daring to challenge him. Maybe it will be somewhere in the middle.

But most of the time, in such scenarios, you can figure out a path forward. And whether that path results in you staying or leaving, at least it will be done with honesty, transparency, and mutual respect.