I'd recommend leaving Twitter without actually leaving. As in: clear out your entire profile of data, change your pfp icon/banner accordingly, and change your bio to something supporting the call to leave.
Social media sites do well because, when people leave, the feed fills in around them and mutuals no longer know they're gone. For added impact, set up an automated message saying why you've left and where to found you, or something else to that extent.
These are basically my thoughts.
I won't fault anyone for deleting their presence on social media, but if the goal is to disrupt the platform and perhaps start a movement for others to leave, leaving by itself won't help.
Connections on social media aren't as solid as they are in real life: they're feed-based. Your loss will be drowned out by the feed.