Arsenal fans doesn’t have any options than to accept the second position every season because that's the best they can get. Even during Arse Wenger's reign, Arsenal was a business club so I don't see why they will be mad at Arteta who is always finishing on second positions recently.
In the past few seasons in the English Premier League, the teams in the first position of the points table have changed, but the teams in the second position of the points table have not changed. We have seen Arsenal finish second in the points table for the past few seasons. Arsenal have been competing hard with Manchester City for the last few seasons and they have finished second in the points table with a tough competition with Manchester City but this season they are not competing with Manchester City but are again competing with Liverpool. Now Liverpool are at the top of the English Premier League points table and Arsenal are second in the points table. Arsenal and Liverpool also have a considerable gap in points, so looking at the performances of the two teams and the current position of the two teams, it seems that maybe Liverpool will win the Premier League title and Arsenal will finish the season in second place again.
In the past few seasons the English premier league number of teams that have earned that first position hasn't changed much, it's been Manchester city all the way, else it will be Liverpool, in fact Pep Guardiola had to even won the EPL more time in the last five years.
Though i will likely agree with you with the second position, it's looking the position of a first runner up is permanently looking like a crown meant for the Gunners. That's is why i Respec the fight Liverpool has putting against Manchester city over this year's, if not the premier League would have been turned to a private estate owned by Pep Guardiola.
You have hit the nail on the head because ever since pep came to the league it's like the have monopolized the league to them self because I only remember that it was once that Liverpool won it under klopp apart from that season the premier League has become a one man affair with Club dominating the league and winning it multiple times Liverpool has been the only team that has been struggling and giving Manchester City headache in the league and any season that Liverpool is not in form Manchester City win the league before the league even gets to and end
For Arsenal second place is their target as far as am concerned because they are a team without ambition if not arteta will have been shown the exit door because he has failed as a coach to inculcate a winning mentality in the arsenal team because one big challenge arsenal has is the issue of ambition and mentality they are not ambitious enough that is why they are ok with any position that they finish every season the board too has to be blame because they have not also brought out money to buy world class strikers that will put fire in the team