One reason is the closing of insane asylums. People who would have been previously committed are free to mingle and breed with other people who would also have been committed in the past.
Between cars, airlines, and infrastructure, people have more options to pick up and relocate, including people with mental problems. After the national highway system was built starting in the late 1950s, look at how many "oddballs" made their way to California in the 1960s. They were migrating from every small town in the U.S. Even now, look at how many homeless migrate between San Francisco and Portland or Seattle depending on the weather. They've built their own communities filled with a disproportionate number of the mentally ill.
People with mental illnesses have an easier time congregating compared to past history or currently in other parts of the world. The downtowns are filled with people who belong in institutions. They'll find drugs, things to steal, places to camp, and live off the taxpayers and the excesses of modern society.
People with mental illnesses such as narcissists are rewarded for their behavior in certain segments of society. Large korporations are known for hiring Type A personalities to fill certain positions. Rewarding them leads to more of them.
Government programs pay for mentally ill people to remain unemployed and allow them free reign to meet other mentally ill people and even breed. If they have children, the family is given housing at the taxpayers' expense.
We are now two generations into PsychFest and it continues to get worse.
In other parts of the world, people with clear mental illnesses are kept in check by default. There is no financial incentive to hire them as it's only in companies that have a disconnect between actions and accountability that some mentally ill can thrive. There is no overabundance of wealth to support groups of them on welfare programs. It is more difficult for them to leave where they live and move to a location with a higher proportion of other mentally ill people.
Pornography has a lot to do with mental illness. This whole trans/LGBT movement has its roots with men who fixate on sex. The saturation of it lead to entitlement, discontentment, break up of marriages, diminished masculinity and increased femininity through weakness and lack of discipline. Many children live in divorced homes and have absent fathers. There’s a lack of masculinity in the churches with stats indicating that upwards of seventy percent of the Christian men are addicted to porn. Women are fast approaching levels of porn addiction never seen in society leaving the future generations into a further cultural rot, destroying what’s left of of the family and destroying children with their madness of pagan sexual ideas.
If one wanted to destroy a society, they would push pornography into every home. That is exactly what we are seeing.