And what caused you to not acknowledge the so called truth. Determinism implies that even this acknowledgment was beyond your control, even though you feel like it wasn't.
I do accept that there is some "determinism" in life. You do not choose the game, you do not choose the board and you do not choose the pieces.
However, you are playing the game. To say that you have no control and that the game is playing itself is to have "mauvaise foi".
Life might limit your options but only you can make choices.
To wait until life cuts out all options but one is not letting life make choices for you. It's deceiving yourself. No choices are made, options are simply slowly getting removed from you. That's not having no freedom, that's not acting on your own freedom.
Hardcore existentialists will even say that the act of not acting on your own freedom is an act of freedom itself. You are free to let life take all options from you.
Suppose I could show you a "Raphmedia" response that I calculated, held aside while you were making this post, then showed you my calculated responses (top-5). If we compared the corpus to what you wrote, would you think differently about determinism and who you are? Maybe right? This presuppose I know a lot about Raphmedia, I'm thinking brain scan type detail (Google does pretty well with the search bar autocomplete using a lot less info).
I sort of feel like Raphmedia could be encoded, same here as well. Still, I enjoy the chats :)
"What is meant here by saying that existence precedes essence? It means that, first of all, man turns up, appears on the scene, and, only afterwards, defines himself. If man, as the existentialist conceives him, is indefinable, it is because at first he is nothing. Only afterward will he be something, and he himself will have made what he will be."
I believe I understand the arguments against freewill, but that doesn't answer the question of why people fighting for purpose and meaning.