[tga]

Are you using "building" to mean "creating content" for the web? Then yes, in absolute numbers, it's more worth it (monetarily) than ever to create content. There are more people than ever making serious revenue with things they are publishing on the big platforms -- even if competition is increasing, consumption is also high.

"Building" websites? Indeed eroded by social media, many businesses are happy with only a Facebook/Instagram presence.

"Building" software? Yes and no: it's all still on the web but the increasing number of developers, and now AI, are making it easier to fill niches. There aren't many low hanging fruit left, you won't get rich quick with a todo app.