This is a very weak argument and I’m generalizing my own situation, but I don’t really want to invest in companies whose products I don’t even want to use. Anyway, looking at the development of Facebook and Instagram, I really have to wonder about their popularity. My own feeds are practically just content recommended by algorithms and a lot of short-video trash. You rarely see your own contacts there anymore. I wonder what the age distribution of those services is? I’ve enjoyed life long enough that I missed the boat on Snapchat and TikTok. Conversely, I don’t know if young people actually use Facebook anymore?
Social media has so many harmful side effects that I’m not at all sure if these are really the future anymore.
I deleted the apps a long time ago, but the accounts still exist. I use WhatsApp out of necessity because a large part of my social circles uses it happily. The network effect there is certainly strong 
But this was just some idle grumbling. Sorry