It's not the end of the fight, but it's great to see that the efforts are working! I sent a handwritten letter to my MPs a few weeks ago about this issue but no answer so far...
I used the online form at fightchatcontrol.eu to send an e-mail to all of my representatives. Of the 90ish contacts, 4 replied – all agreeing to be against the proposal. One of them even mentioned the influx of mails they were receiving about the topic. So that gives me hope.