Those posters are absolute minority. Passing on Mbappe for "free" would be absolute lunacy. As such, most of fans supports the transfer. Top tier forward, which Madrid needed. He is not the issue.
What bothers me is:
1. Personnel problem:
Losing Kroos, year older Modrić and club does not bring top tier CM, is asinine. Substantial drop in quality, and lack of specific profile of a player. For example, i rate Valverde top tier, but he ain`t CM. Touchu is to passive to be a leader. My only hope is Camavinga to be honest. Also, we have issues in the back. CB should be a must - starting one, and Left Back would be a nice addition.
2. Tactical issue:
Carlo. I don`t know what exactly is he trying to achieve. Everybody knows two man-midfield with 4 forwards upfront is highly optimistic approach. Prime Redondo and Kroos / Modrić could not hold that midfield together, let alone Touchu and Valverde. No build up, and no creative play in final third. Just congestion, without any kind of tempo. Basics like "triangles" and proper timing, missing in action. Horrendous really. Despite missing Camavinga and Belli, who are clear starters, we should show something.
My take would be 4-4-2 with three compact lines, with Vini and Mbappe upfront supported by Belli and Valverde as wide mids, with Touchu and Camavinga central ones. Endrick and Rodrygo first rotations upfront.