I've done it about the same length of time, ten years or so, and have observed the pretty much the same thing. Sometimes there's a Safety that's ranked high, like Harrison Smith, but it's becoming more rare. I do think in the past several years we've seen a slight uptick in higher-ranked WRs (i.e.) Trey Quinn and Trent Irwin), but they are trying to do everything in their power to eliminate that, obviously.
TE
flips to Colorado from ASU. Both teams have
relatively "White-friendly" 2017 classes.
Man, last-minute signings and commits are almost entirely coal...dozens and dozens before you see a White signee, who's then usually an OL or P.
Been following Recruiting for a while too...easy to get discouraged; it's been fairly steady; maybe a gradual decrease w white prospects. Ebb n Flow...like you say WR Class has been dismal recently...noticeable much darker now on O-Line..surprisingly at Guard.. Seems to be an uptick in Poly players as well.
(& More recruits are leaving their Home State than ever before too)...
However TE continues to flex it muscles...according to 24 7 Sports...33 of the TOP 50 Prospects are white! 2:1 ratio...having the likes of Gronk; Kelce; Olsen; Eifert, Witten, etc at the Top of the NFL seem to be reversing the trend. #1 Ranked TE Prospect Colby Parkinson 6'-7" looks to keep Stanford holding on to Title of "TE U"....#2 TE Brock Wright(6'-5" 243) has the look of a Future NFLer keeping the Notre Dame pipe-line flowing. #3 Cole Kmet also headed there... #6 Grant Calcaterra (Oklahoma) has the look of a WR
LB Nate McBride 6'-2" 228 (4.43/10.6? 100m) headed to Georgia (played RB) may be the Best explosive Athlete i have seen in recent memory
Hoping All purpose Tailbacks like McCaffrey/Woodhead will have an effect (like Wes Welker did in the Slot)...opening up more opportunities for players like Pittenger(Arizona) ; McChesney (BYU) ; Dubots (Washington St); Foley (New Mexico St)...sure didn't help Zane Dudek (Yale)
Here's a cross-section of some random teams...
Wisconsin (as mentioned by Celticdb) maybe the most white friendly...11 of 18 Signees...
Northwestern 11 of 19 (WR & S)
Boston College 11 of 21;
BYU 10 of 21 (7 Poly's)
Stanford 8 of 14 (count Highly Ranked OT Foster Sarrell/Native American/Eskimo?)
Clemson 7 of 14...50% stunning given the geography..a whiter trend past few Classes; compared to ACC counterparts
Kansas State 10 of 22
Iowa 9 of 21...(not sure abt DE Epenesa?)
Boise St. 8 of 21 (3 Poly/mix?)
Nebraska 8 of 20...40%...(No white defenders)
Notre Dame 8 of 21...(2 TE; 3 OL; DT; 2 ILB's)
North Carolina 6 of 21 (including WR & Ath)
Texas 6 of 18 ...33%
USC 6 of 26 (7 Poly's)
Miami (FL) 5 of 24 (QB, TE, 2 OL, K)
Florida State 4 of 24...20% (QB; TE, OT, LS)
Oklahoma 5 of 27...(QB, TE, C, ILB, P)
Oregon 4 for 21 (5 Poly's)
Penn State only 3 of 21 signees white
Ohio State 4 of 21...
Michigan 5 of 29 have gone the way of the SEC.
Alabama 6 of 29; (more than above Big 10 Schools)
LSU 5 of 24 (QB, FB, 2 OL, DE)
Georgia 2 of 26; (All 6 O-Line black)
Ole Miss ...only 1 of 21 Signees were white (OL)