Perhaps there are fewer SOLO male artists than there were, but there are a lot of bands which will be entirely or 70-80% male, and there may well be 3 or 4 of them who take it in turns to lead on singing with others harmonising or whatever. Thinking of bands like Breabach, Old Blind Dogs (where Johnny Hardie now does more of the singing than he used to in the early days) and various semi-pro bands who work to this formula.
As for choirs, am-dram musical companies and the like, unless it is a "male voice choir" women are always in the majority, but then you probably only need half the number of men to carry the tenor and bass parts. Just about every am-dram musical company I can think of is "looking for more men" - and now for the sour grapes, they can get in on audition with a barely in tune voice far more easily than women with a good voice, just because they are much sought-after!! Big wink emoji!