Take a random example: 5 cute coffee shops around Paris, all of them have that Parisian vibe that tourists are looking for but one of them had an influencer walk in and make some content. Now that one shop is all over the internet and tourists are flocking to it, creating huge lines and overwhelming the business, while the other 4 shops sit at roughly the same level of popularity as they did before.
The problem I see isn't that travel is democratized, it's that people are lazy at planning their trips and just go on social media and find these "hot spots" instead of actually doing their homework or heck even a little exploring around the city.
And I get it, planning a trip and actually doing your homework is hard, it's much easier to get on TikTok and have the entire itinerary planned in one afternoon than spending weeks researching spots on your own.