I’m the founder of MeWe, the ad-free social network with data privacy and no content amplification or newsfeed manipulation. MeWe competes directly with Facebook. On June 27, 2019, I wrote an op-ed in this newspaper headlined “I Compete With Facebook, and It’s No Monopoly.” I’ve changed my mind. MeWe continues to succeed, albeit on a modest scale. Two years ago the platform had five million users and no revenue. Today it has nearly 20 million users and is breaking even with millions of dollars in revenue. Yet despite MeWe’s growth, Facebook’s troubling actions over the last two years have caused...