DH's ability to work late, leave the country at short notice, entertain clients at no notice, always go to work regardless of sick children, sports days, nativities, INSET, school holidays, etc, meant that he was the guy who got the chances, was able to shine, and climbed briskly up the career ladder.
This is rubbish I'm afraid in the sense that it still doesn't make the working partner's (male or female) achievements that of the SAHP.
Men and women can do all of these things without a SAHM partner.
For some of it they just don't go (sports days, nativities etc) and that's easy. For some of it, they need to make other arrangements - paid care, live in au pair, grandparents.
A SAHP is an easier and cheaper support network and in some cases it may make it emotionally easier on the working partner in terms of guilt [I feel less guilty about not going to nativity (and really on that who cares tbh? I'm pretty sure no adult was emotionally damaged because there parent didn't go.]
There are plenty of single mothers who work who can work late, go abroad at short notice and so on - who achieve. No one is saying "oh that's the part achievement of their support network/au pair/child's grand parents".
It is demeaning and offensive for any SAHP (male or female) to try to undercut any working person's achievements by claiming them as
their own simply by virtue of the childcare arranagements.
A high achiever would get there anyway. They just make different arrangements and will usually prioritise work over family most of the time.