Japanese twitter already went through all this hand-wringing about yuri and genderswap, the people mad about TS yuri are years too late to the discussion. (and not even coming to it in a language most manga authors would understand in the first place)
The general consensus is that TS yuri is a subset of yuri. The equivalent of a specialty pizza that not all pizza lovers like, but it's still a pizza.
If it was possible to shout pineapples out of existence, trust me, many Italians would have done so by now. Likewise it's just as fruitless to try to shout genderswap out of existing. Exclude the tag from your searches and you'll never have to see it, everyone wins. Or keep being mad, I guess, but it won't change anything. Worst case scenario you'll be RBI'd if you get too hostile about it.
Anyways, let's all be nice to each other while we wait for our own yuri route to possibly open up.