For Arsenal to face Real Madrid they first need to play well in the group, where they are in second place so far. By the way, they don't have easy opponents and it's not clear whether Arsenal can take first or second place. Because Sevilla and PSV can play well this season. Arsenal have a difficult group, unlike Real Madrid.
Keep insulting Arsenal indirectly because I'm sure they're not even up to Barcelona standards at the present time, considering that the Gunners are struggling to win games. It's hilarious to draw comparisons between Real Madrid and Arsenal. We understand the distinction; Los Blancos is greater than Arsenal in terms of everything, including players and trophies triumphed, and they are considered as the best leading team in the world. Arsenal qualified for the UCL this season, they still got some strength to compete with elite teams down here.
And what about City and Madrid or City and Barcelona? Do remember that Arsenal has beaten City twice since the start. Don't want to brag on this but don't underestimate Arsenal at current state as well. You can pull out the stats factor and yes both these Spanish giants have got a lot in their cabinet but it gets difficult year after year as there are other clubs who are making it hard and Arsenal is definitely one of those.