I don't believe dogecoin is going to die just because there are many companies giving it out as airdrops and giveaway. That's also a way to promote dogecoin and it'll be making doge coin more popular. Dogecoin is. Just a joke cryptocurrency and like other joke cryptocurrency, dogecoin needs a community of holders to get people talking about the project hence this could be way they're being given away as airdrop to increase the numbers of address that hold dogecoin and they'll now use that as a statistics to say lots of people are investing into dogecoin.

Memecoins are getting lots of hype and this will be benefiting Dogecoin hence selling shouldn't be done. Wait for the bull market to get to its peak when the altcoin season is going to start and altcoins will be pumping, you can sell during this time and make more money from the price per doge to be trading higher.