Does Confront affect token units?

Yes, Confront affects token units.

According to Rule 179.1.d, token units are units and follow all rules for their type unless otherwise specified. Because they are units, they are subject to effects that target or modify units, such as the effect of Confront, which causes units you play this turn to enter ready.

Additionally, Rule 179.1.a states that tokens are played by their owner following all applicable steps for playing a card, including any modifications from effects that created the token or other active effects like Confront.