It may simply be more of a situation where the Patriots don't draft wide receivers, as opposed to can't.
In the last ten years the Pats have only drafted a WR early twice. Yes, they were/are both underperformers (Harry at #32 in 2019 and Thornton at #50 in 2022), but a quantity of two is an incredibly small sample size.
Going back further does produce more busts (Dobson, Jackson), but it also shows the Patriots expended draft capital on the position in a very positive way. In 2007 the team traded a 4th round pick for Randy Moss (and got a 3rd round pick back when he was traded away), a 2nd round pick for Wes Welker the same year, a first in 2017 for Brandin Cooks. Considering who was drafted in those spots (John Bowie for Moss, Samson Satele for Welker) and the Pats got a 1st rounder back when they traded Cooks, it appears to be a good use of draft capital at WR.
Another thing to consider is that when the team has Moss, Welker, Edelman, Gronk, AH already on the roster, it didn't really need to expend an early draft pick on a WR.
That being said, yes, it is infuriating to see the club pass on quality receivers like Deebo Samuel and A.J. Brown, and instead select N'Keal Harry. Small sample size or not, something is clearly in need of repair - whether it be the scouting/evaluation, or the specifics they are looking for in that position. To make matters worse their evaluations of free agent WRs has not been that great recetly either. All that was exacerbated by the decision to essentially trade Jakobi Meyers for JuJu Smith Schuster.