It seems as though only the Theravada school is the only surviving school that stays true to the Buddha’s teachings.

Other schools seem way too attached to rites and rituals especially in China where they practice a lot of Taoism and Chinese ancestor veneration. Monks in many Mahayana other schools also are doing things that would have been forbidden such as handling money.

I know this international student from Japan who said her father is a monk. Apparently, in some Mahayana schools, they are allowed to get married and have children. The Buddha would not have permitted this in the Sangha.

My question is, has the Sangha (minus Theravada Sangha) become too corrupted since the Buddha’s parinirvana or are the Mahayana schools mostly heretical and should not be regarded as true Buddhism? Perhaps it is time for the Theravada to try and actively bring back the people who have been deceived by the false Dhamma back to the true teachings?
The Gautama Buddha said that the Maitreya Buddha will come at a time when the Dhamma is completely forgotten or no longer meaningful communicated. Perhaps the Theravada is the last bastion of Buddhism? And if Theravada were to end, true Buddhism will come to an end?