Shiba Inu is definitely what most people here would refer to as a shitcoin. Not only did the tokenomics development process get interrupted by giving 50% of their ERC-20 tokens to someone who they thought would never sell them, but that person gave a big chunk of them away. So we know that half the value is in the hands of someone (Buterin Vitalik) who does not care about throwing his Shiba Inu around, but also that there is no point in Shiba Inu as it is just a Doge lookalike which brings nothing new to the table. It is flourishing on its meme value potential.

Memecoins eventually lose their value and become irrelevant.

Choose wisely where you plan to invest your money into. I suggest not going under the top 10 coins on coinmarketcap, although as you can see, Bitcoin is always the top option.