I think the purpose of these possible transfers is so that Arteta has funds for further transfers this summer in the off-season. Arteta can't win the Premier League, they are constantly missing something, Arteta apparently thinks that the problem is with some players, that some positions require strengthening, but he spent a lot of money in previous seasons, apparently further funding will be impossible without selling some players that Arteta does not count on.
Seriously i am not against the idea of selling players to raise fund because basically most of those players i mentioned are supposed to leave the club by next summers. My issue is on the fact that the club should also support Arteta with extra funds. Money Arteta might get from the players sold will not be enough to get all the players he wants in this team. The player's Arsenal is interested as of now will cost them up to 60m to 80m euros, imagine signing like 4 players i doubt the money will be enough for Arteta. In fact, i don't see any point of singing players if they can't afford to sign the players, they want then they end up signing players with equal strength with the players they sold.
Nobody in the world is against selling players to raise funds for more transfers. They would be against selling certain players, because you may sell 10 and nobody would care but you sell one important player and suddenly it's a big deal.
For example, if they decide to sell Saka like people assume, then people would be mad, because Saka is a great player and if they can make 100+ million on him, which would be insane amount to say no to, it would still piss fans off, and they may not be able to recover form that unless they spend their money on better players.
I have no clue who they are going to sell to raise funds, and I have no clue who will replace, but we have to wait and see the results before we judge. If they win the title next year, then it was a good decision, if they are second again, it was unimportant decision (not bad not good), if they are worse than second place, it was a bad decision.