I wont defend him, Lovren, or Thompson (singer of that song), but i dont think Brozovic is facist, or nazi, i do think tho he is stupid. Now the song they sang is also not a facist song, it's a song that was sang in 90s during Croatian war of independence. I was kid then and i know it word from word, since it was on every radio, tv station etc. Song is also remade, so there is a Bosnian version of the same song and there is also Ukranian version.
I dont think he embarrassed Inter, if anything he embarrassed himself. About the song they sang after beating Brazil, i dont see it as a nazi song also, he does indeed sing about part of Bosnia where a lot of Croats live, i always felt like he maybe sings about those ppl, not like he wants it to be part of Croatia or something, i dont know. There are bunch of members of forum from Bosnia here, maybe they'll explain that part better then me, or how they feel about it.