If you gotta say l2p, then I can say same for you when you are facing okw while adding I have seen pros countering volks easily so what is your problem?
They can be countered, with BARs / M1919 riflemen but the problem is that schrecks on mainline inf kind of enforces blobbing playstyle and countering it forces either blobbing BARs / M1919s against them or maxim spam. And yes, maxim spam is currently way too effective. But the USF 50cal is a joke. Vehicles vs an a-moving schreck blob isn't the best of counters. So we are left with spamming maxims or creating another blob of doom of BAR/LMG infantry.
Rocket artillery is a fine way to counter it, but USF and brits have it only as doctrinal options which is very wrong in terms of design. In general, countering the blobs is much more limited until later stages of the game. Mines can work if the blobber isn't capable of upgrading the minesweeper and using it with his blob. Coming from different directions against the blob can work on some maps as well but it's not an actual counter to it.