Most Kings are a symbol of Oppresion and a division in society along socioeconomic lines!!! Kings now a days are Purely symbolic they can't effectively run a nation???

You're being quite naïve. Most oppression in modern times comes from presidents, chancellors and dictators in republic states. The UK, Netherlands, Sweden, Denmark and Japan are all constitutional monarchies with stable governments and living standards higher than many countries which previously shed their 'oppressive' monarchies. As you say, they are purely