Do not be too happy that big and giant companies are entering the field
Because they set the price up and down whenever they want
You should be happy when ordinary people invest more than big companies.
In simpler terms, it is much better if bitcoin or anything else that exists is distributed all over the world and reaches individuals and companies equally, or, as the saying goes, does not accumulate together.
Wherever governments or large corporations stand, they are sure to determine everything.
Successful and healthy

I don't agree at all. Big companies cannot manipulate the price so easily. They can influence the price more than individuals, of course, but when institutional investors started buying more than 18 million
BTC had been mined already. Also, as price and market cap increases, price is more difficult to manipulate.
I am really happy that they entered the market and I will be more happy if more companies enter. What you are defending is kind of communism where bitcoin is equally distributed all over the world and I don't agree with that. Those who mined or invested early and still hold some have the right to profit more. Likewise, those who invest today have the right to have more profits than those who will do in 10 years time.