No, the weak religions don't "evolve", they get corrupted and subverted by pressure from secular society. The strong religions survive or all of their members get killed off, which is a much better end than becoming the pathetic shit that Christianity is now.
If any Christian from 200 years ago saw the shit that's happening today with their religion they'd legitimately be sick to their stomach.
If any Muslim from 200 years ago saw the shit that's happening today with their religion they'd only be a bit worried (when it comes to how Islam is in Western societies). Gays are still being killed, women are still being stoned for adultery, and shariah law is still being enforced, etc, in their home countries (Islamic Countries - Saudi Arabia, Qatar, UAE, etc).