Altcoins can be profitable, but they come with higher risk compared to established cryptocurrencies. Research thoroughly before investing. This is not a financial advice.
I think this topic has been discussed several times on this board. Everything can turn into a good investment if you can make a profit from it. A meme project can be a good investment? yes it can if you know how to make a profit out of it. Investing in bitcoin can be a bad investment? yes it can as well if you don't know how to manage your risk. Its not about altcoin or bitcoin being a bad or good investment. Its about how you can manage your investment and what its outcome will be.
Every investment has it's own risk factor, the earlier we learn about them the better we do not ruin our investment. To avoid being the victim it is advised that one should first get a little knowledge on how the system operates, Bitcoin with the lowest risk factor or Altcoins that probabily has the most risk factors even with fully understanding the process it is yet not assured to always making profits at it is just based on speculations and not certain If the project will succeed especially the new ones in the market .