Not totally accurate. Yes at one point PoC and women would have been banned from 'men's sports' in certain countries, but not all. But Mens Sports have, for the most part, been an open league where if any women could make the cut, they would be allowed to compete.
Womens sport, in most countries evolved to give women a place to compete with peers based on their biological sex, in an attempt to give them a fair playing field.
The above is the reason why i have always said that the Trans Woman debate entirely misses the point. Had those that original created 'Womans Sport' known that at a point in the future the word 'Woman' would be isolated to gender and not biological sex, then the original league creation would have been defined by a term for biological sex as that was ALWAYS the division they intended.
Which means those on the left trying to argue trans women should get to compete versus biological women, as they too are 'women' are trying to take a semantic advantage to get them in when that was NEVER the intent of the leagues creation.
I am a proud lefty but this debate is one too many lefties get wrong.