Seems like you’re often pitting reliability against power. A “reliable .32” vs. an “unreliable .356”, an “unreliable CAR”, etc.
There are reliable low-power guns, unreliable low-power guns, reliable high-power guns, and unreliable high-power guns. The two considerations (reliability and power) aren’t mutually exclusive.
I don't have 2k rounds thru my P32, I confess that. But I bet you've never put 2k rounds thru a .356 Star BM, either. And I have put more than 100 rounds through it. I put 100 rounds through it the day I bought it. Anyone who carries an auto pistol for defense without firing it first is taking a stupid and unnecessary risk.