Right now there are more coins available in the market which gives you more profit than bitcoin.
Bitcoin price is also not stable.
All these factors affect its popularity ??
What you think, still bitcoin is more popular ?
Bitcoin is still the base of all alts . To buy alts you need to buy bitcoin first ,thus it will never unpopular or irrelevant .
Yes other coins might make you more profits but i think of bitcoin as storing value that in the long run gonna make me profits on my assets too.
Bitcoin price might dump drastically if more alts became paired with other coins and there was no need to buy bitcoin first to buy alts.