Even though Tottenham's performance this season has been very erratic, I agree with you that Tottenham will not be relegated. Tottenham are still very likely to win more than the next 5 remaining matches, meaning they still have a big chance of staying in the Premier League even though they cannot be in the European zone. Tottenham can still qualify for Europe if they can win the Europa League title this season, but many people may doubt it.
There are several difficult matches that might result in Tottenham losing points, including against Chelsea, Liverpool, Nottingham and Aston Villa. For other matches, I think Tottenham can win or draw.
I think I have the same opinion as you that Tottenham will not be relegated because of course Ange Postecoglou will not stay silent in order to keep Tottenham in the premier league and of course if they play against the team you mentioned Tottenham will definitely have trouble because of course the performance of the team they are playing against is better than Tottenham but it is true I also agree that for matches against teams other than the teams you mentioned there is certainly a chance for Tottenham to win it. but in my opinion the strongest candidates for the club to be relegated this season are Ipswich town, Leicester city and Southampton because in my opinion those teams currently have the smallest number of points among the other teams.
but it is true that Tottenham also has a chance to get a ticket to play in Europe even though many people doubt that they will win the European league title. but honestly I personally am one of the people who doubt that Tottenham will become the champion of the European league. and in my opinion it is actually lucky if Tottenham is not relegated this season. but honestly I feel sorry and did not expect Tottenham who last season they managed to finish in 5th place but now they are in 14th place in the standings. In my opinion, Tottenham needs to bring in good players next season to make Tottenham's performance good again.