My point is that all speeds of chess are "chess" and because someone does well at one speed of chess is not good reason to belittle and disparage players who do well at other speeds of chess.
It is almost always true that players who belittle certain speeds of chess are the same players who could not do well in the type of chess they mock.
There are many, often younger, players who can play bullet or other very fast chess.
I cannot play bullet at all and also cannot and do not play very fast chess. But I admire the players who can.
Some players play best at over-the-board tournament speed.
Some players, [like me] do their best at correspondence chess. [here I refer to correspondence chess without the use of chess engines]
The slower one plays chess, the better the chess game is. [this is a general rule]
Some very beautiful games are played at "slow" time limits.
This does not mean that USCF over-the-board chess "is not chess" just because very often the games themselves are not as high quality as correspondence chess.
It is just mean spirited to say that bullet or speed chess "is not real chess"
It is also just mean spirited to say correspondence chess as played here on chess.com "is not real chess"
Players who mock certain type of chess are very often the players who could not possibly do very well in the type of chess they mock.
I will also add that correspondence chess with the help of chess engines is real chess. It is the type of chess which many mock but those who mock are very usually players who could not ever do very well in that type of chess.
It is just plain silly and egotistical to mock a type of chess that is not the speed you like to play.