It's not so simple. The activist trolls will "dispute" the updates and it will revert to its former state.
Well you have to dispute back. They want it more than you do evidently.
Of course they will. It's a constant battle for the truth. It's what I wrote up above in #16: "The price of a public bio is constant vigilance."
If one is not willing or able to keep an eye on one's own bio page, and fight the trolls, one should either accept the situation as unfortunate and tolerate it, or move to delete the page. Whining accomplishes nothing, as I also wrote above. The choice "Make what I wrote immutable and permanent" is not really on the Wikipedia menu.