Israel is very intertwined with the typical conception of "the West" via a very cozy relationship with the USA including billions in annual funding, and a great proportion of its citizens having roots in Europe and the USA.
What's the significance of wearing Koloradka? It looks like something christian priests wear, I don't think I understand.
In those parts of europe where both tsarist Russia and Soviet union were occupiers and now Putin is a threat, koloradka is pretty much on the same rank as nazi symbols.
Most of whom probably still remeber very well the moderate Russian racism towards jews.
Also they probably would have stayed in Russia if they were happy with their government. Luckily Israel was one of the good ways to get out of the country if you had jewish roots.