Gary Neville whinges endlessly about "The Glazers this" and "the Glazers that" but they've owned united for 18 years and in nearly half that time, up to 2013, they were pretty successful. Alright, people moaned about the interest and dividends going out but they were undoubtedly successful. So was that down to the Glazers?
And they've still won things in the last ten years, although nowhere near as much, and never the PL or CL.
There are definitely things you CAN lay at the Glazers' door. The appointment of Woodward and Arnold, without appropriate footballing appointments at senior level. They've chased commercial visibility above football visibility (e.g. Ronaldo). But Johnny Evans and Dalot failing to mark Haaland for the second goal, and continuing to pick underperforming players, or play them out of position, and those players seemingly showing a lack of motivation? That's on the football side.