Your mistake is treating community as one. It is very divided when it comes to maps. There are some players who would wish to play the same map every time. There are some who would like as much variety as they can get. And there is plenty of steps in between, players who hate some particular maps, players who are biased towards certain factions, players who like different types of maps.
So yeah, when the map discussion comes along, for each map, there is always going to be a vocal group of people who will want to remove it or change it completely. But it does not yet mean the average community member would like it to be removed.
You're right, of course.
What I'd like to see in a future Relic game would be a separation between "Normal" automatch and "Ranked" automatch, like in some MOBA games. The normal mode could have a large variety of maps that aren't necessarily the most balanced, while the ranked mode could have something like only the top 4 least vetoed maps. That way the competitive people can play only the most balanced maps, while people who just want to have casual fun can enjoy a greater variety of maps.