This was Goblin Slayer's plan all along, to bring hot companions so the Goblins let him in

The goblins are ugly, small, nasty looking idiots bastards that cause misery for everyone and are widely despised by every factions.
The goblin slayer is a badass, ice-cold powerful warrior that get an harem of cute girls to follow im despite having zero social-skills and never lose a fight.

Of course you'd relate more to the goblins. The goblin slayer is who we want to be, but the goblins are who we are.