You're just looking at history through a nostalgic lens.
The genderlocks are incapable of "harming a community" because what does that even mean? Genderlocks can't do anything, aggressive people being hyperbolic can. When we found out about the gender locks a lot of people who were mad at them got online and reacted in exceedingly dramatic ways. Go back to the beginning of this thread and others like it from that time and it's a total mess.
If the genderlocks have in any way lead to an element of toxicity aimed at people who want them removed it started when this "community" was raging about how the devs were sexist and homophobic or when this "community" (even recently) took it upon themselves to call for the exclusion of some content in order to get what they want.
People who want the missing genders, male Viera in particular, have painted the vast majority of the target that's on their own backs right now through really poor behavior. This isn't the fault of the genderlock but rather of the lack of self control evident in many male Viera supporters.
Let's be very clear - while I don't expect it to happen the easiest solution to this issue is for the people who want male Viera to move on from this and accept the dev decision. That doesn't require any kind of content loss to do, it doesn't require any concessions from SE or anything like that. Just maturity from the playerbase.
Don't blame genderlocks, blame people.