Multiculturalism is like a cancer that keeps on metastasizing. It never stops. It grows bigger and bigger and demands more and more Diversity until the native host population is consumed and devoured by it.
PC or Political Correctness is the mental virus that fools a people into seeing Multiculturalism as a magic cure than as the cancer that it really is.
Those who ignore cancer because it begins as a small tumor doesn't understand its true nature. Unlike a birthmark or mole that remains fixed in size, cancer cells tirelessly grow and spread, eventually to sicken and kill the person.
Likewise, those who ignore multiculturalism as just some small thing fail to realize that it is a radical ideology designed to keep increasing foreign populations until the native folks are reduced to cowered and powerless minority.
It is natural for a society to have minorities. That is not the problem. Every society has some minorities.
However, multi-culturalism isn't about humane tolerance of existing minorities. It is a radical ideology insisting that MORE minorities and foreigners must be added UNTIL the native majority is reduced to a minority and shamed and intimidated into obeisance.
It is about immigration-invasion and destruction of native folks and culture.
There is no negotiating with multi-culturalists. They will not accept any limits on the percentage of minorities. If a nation is 99% white and willing to accept multiculturalism until the nation is 90% white, multiculturalists will only insist on more diversity. If the white majority settles for a 80% white nation, that won't be acceptable either. Indeed, the more you try to negotiate or compromise with multi-culturalists, the bolder and nastier they get. So, if you seek compromise for a nation that is to remain 60% white, the multi-culturalists will again say NO!
Then 50%? 40%? 30%? No, the multi-culti process is radical & ravenous and continue with zeal even when whites become 10% or less of the original population.
THAT is multiculturalism. It is a cancerous mechanism that never compromises and insatiably presses fore more conquest and concessions.