right now the altcoin market is dead, google trends is dead, the forum and crypto twitter is dead. these are still the early stages of the bull market. we're still a ways off (several months at least) from the sort of retail hype we saw during 2017.
With respect to the altcoin market, you may be right. In my opinion it was fueled by the ICO bubble and mainly by Ethereum, and now we have learnt that the "easy money" wasn't so easy

But with respect to Bitcoin, just the Google Trends chart shows that interest is growing again since late February 2019 approximately. We're again at mid-2017 levels, when the sentiment was already clearly bullish. Only the three most bubblish months in late 2017/early 2018 had higher interest levels, and as I wrote I think most of that was interest in Bitcoin as a "novelty", not as a potential investment idea. And those that invested in those months most likely got burnt. So the current Google Trends "level" is far from being "dead". It is already at a bullish level.