Cummins vs Bumrah

[sayon basak]

I still maintain, Bumrah will struggle it seems to reach 300 wickets and Cummins will likely end up with the better career.

Really depends on how long he'll play for.
He's playing since 2018. So, that'd mean he has played 42 tests in 6 years. Let's say, he'll play for 5 more years and will play 30 more tests in those 5 years, he should take 130 wicket at a similar WPM. Then he should end up with something like 315+ wickets in 72 matches.
So, if something doesn't go horribly wrong, he should get to 300 wickets.