I didn't always have the understanding of what I was giving up, but the signs were there so I chose to dig deeper. Fast forward 10 years, my mental health is the envy of many people because I chose to not care if people removed me from their lives for refusing to use the same services they do.
Having said that, we all have a choice to make. So, I disagree with that comment that it's now everyone's problem '. It certainly isn't my problem. There are those that have chosen to add what I use to their arsenal of services, others that flat out switched to them, and then there are those that, likee, refused to use other services (like Signal and SimpleX) and I'm very happy with the decisions each of them made.