Having an Alignment designates a certain type as a ritual weapon for you, but that doesn't give you the weapon itself for free or give you any particular benefits with it unless you have another ability that does so. For instance, anyone with an Alignment can take the Ritual Weapon BMS feats (from Call to Arms: Crusader), but only Priests and Crusaders get a ritual weapon for free.
I'm not sure Ritual Weapon BMS actually works that way. The Prereq might not be clear on whether you actually need a ritual weapon, or just need to have a forte in your alignment's ritual weapon, but the text clearly seems to assume you already have a ritual weapon and merely gain a second one.
Ritual Weapon B/M/S doesn't actually give you a second ritual weapon, it makes the your alignment specifically grant you a different ritual weapon - as in you now have a choice of weapons for your ritual weapon. But, the only way to get a ritual weapon for your alignment is still via the Priest's Acolyte
and the Crusader's Called to Arms I
You can take the Ritual Weapon B/M/S chain without a ritual weapon (because you don't have either of the above class abilities), but it doesn't do anything without an actual ritual weapon
. Just because your Alignment's ritual weapon is a Broadsword (and you added Longsword with basics) doesn't mean that all your Broadsword and Longsword attacks are now aligned when you go into the Stalwart in Faith
stance. You still need an actual ritual weapon granted by either of the above mentioned class abilities.
However, you could argue that having both the Priest's Acolyte
or the Crusader's Called to Arms I
class abilities grants you two
ritual weapons - and then Ritual Weapon Basics allows those two weapons be any combination of the two weapons that you consider ritual weapons. That'd be pretty awesome.