Larry Wall wasn't forced out of Perl development. He decided on his own to stop actively contributing to Perl 5 sometime before 2000 and to hand it off to other

Larry Wall wasn't forced out of Perl development. He decided on his own to stop actively contributing to Perl 5 sometime before 2000 and to hand it off to others. The whole Perl 6 v.s. Perl 5 branding was a source of friction, but as far as I know the rebranding of Perl 6 to Raku wasn't in any way because Larry was forced to do something. The two communities eventually decided that sharing the same name for two completely different languages didn't make any sense.