You are completely ignoring the impact that having billions of dollars at your disposal to spend on keeping users addicted to your platform can have. There is no way a free platform can compete with X/Instagram/TikTok, even if such platform had a better product(which they do btw). Just look at Whatsapp/iMessage, both are terrible apps, there are MANY better options, with way more features, and somehow they are still the most used messaging apps in the Western.