But can there be an alternative argument that favors Rama temple irrespective of Janmasthal claims?
Yes
Because the Janmasthal claim can be contested
A city where we have a history of settlements from about early 1st millennium BCE onwards
But the "historical" Rama of the Ikshvaku clan is likelier to have lived in the 2nd millennium BCE
Likely a prince of the Ikshvakus during the early Aryan settlements in Northern India
That movement has its validity - except that it need not necessarily be the Ram-Janma-Bhoomi movement
It need not be, though the positioning has helped politically to market the movement, and get it the attention it deserved
It is not merely a political movement, but one that marks the cultural awakening of a long repressed people, who won't take it lying down any longer
It's never a great idea to right a million wrongs in the past
But certain symbolic corrections can go a long way in assuaging v v deep civilizational wounds
But it need not degenerate into a fundamentalist movement that becomes a breeding house for mediocre historians and pundits
Not by insisting on Janmasthal status as a "historical" fact
You can insist on the Janmasthal tradition on the grounds of faith. That is perfectly OK
They emphasize - "Ram Lalla was born right here" as a matter of fact, not faith
But the Left will have a 1000 holes to poke in that stance.
It's a lot harder to counter the case for civilizational redressal