Talking about XB1 vs Switch in US, going buy Vgchartz numbers XB1 is currently at 22m in US, so what we can realistically expect LT, around 30m, no way it will hit 35m.
Switch will sell like 40-50% of its world wide sales in US, so if Switch just hit even 80m LT world wide, we talking around 30-40m in US alone.