Yeh. But Sikhi practiced in its actual true form, ie Gurbani followed 100% without twisting and corrupting it, is Truth.Hence, a previous comment I made - What religion out there is not a "failed religion?"
Corruption has seeped in everywhere. Religion is twisted and used for one's self-interest - to actually promote fear, hate, and division, rather than love and tolerance.
Many Sikhs love to bring their Egos and Manmade rules to the forefront, failing to realize that the only way to actually become a Gurus Sikh is to deliver your head to Him on a plate and eradicate the Ego.