YouTube, X, and Tiktok compete with Meta's products in different verticals so
it's not really a fair comparison. But at the same time WhatsApp is drowning in competition from a thousand different messengers so I'm
not sure if this point really matters.
Like X isn't competing with FB Marketplace but Craigslist sure is. TikTok isn't competing with FB Events but Apple Events and Eventbrite are.
As long as WhatsApp have a strong backer like Meta, then using the term competition is meaningless. In many countries, WA is the de facto IM platform, but I can bet that it hasn't received a dim from those users. So how do they pay their developers, infrastructure, and surrounding resources?
Like X isn't competing with FB Marketplace but Craigslist sure is. TikTok isn't competing with FB Events but Apple Events and Eventbrite are.