[bvk]

Not only are Finnish and Hungarian related, but they are (as far as historical linguistics can tell) completely unrelated to every other language of Europe. Going by family resemblance, you'd expect English speakers to have an easier time learning Persian or Sanskrit than Finnish.

[zokier]

> but they are (as far as historical linguistics can tell) completely unrelated to every other language of Europe

You are forgetting the Sámi languages and Estonian.

[agrostis]

And Mari, and Mordvinic, and Komi, and Udmurt, and Karelian, and Veps, and Vodic (though the last two are, sadly, more or less moribund).