When you want to disregard a christian, you ask them if Jesus Christ would've done this, if you want the same for a muslim you ask them if Muhammed would've done this, if you want with a socialist you ask them if Marx, Stalin, Lenin would've done this, if you want it with a nationalist you ask if their national figure would've done this, and when you want to tell a liberal to not do something, you ask him "Would've Harry Potter supported genocide on Palestinians?"