It isn't though, because what he says doesn't matter, over and over. He always does the exact opposite.
But why would 'do the exact opposite' of stating biological fact (which is what he's done).
And if he did, he would be exactly the same as Starmer on this issue, not worse.
'Whataboutery' I've learned is thrown around on here to shut down views that show obvious hypocrisy
There is no obvious hypocrisy on this issue unless you think people are wholly right or wholly wrong and that's not a view intelligent adults usually take. Boris can be right on this point and wrong on many others. It so happens this one is important to many people.