Kant attempted to work out a view of religion and religious belief according to which existing religions could be brought into harmony with modernity, science and reason.

Clearly no working class movement ever came about that was able to do what Marx was hoping for.

I don't think Kant's approach to religion is any longer viable in its original form. But that does not mean it is simply wrong or that we cannot learn from it.

What is central to morality is rational self-constraint (acting from duty), in cease where there is no other incentive to do your duty except that the moral law commands it.

Kant thinks of judgment as a special faculty or talent of the mind, not reducible to discursive reasoning but cultivated through experience and practice.

That Hegel's theory is derivative from Fichte's does not prevent it from being strikingly original and of independent value.

Hegel's theory of recognition is basically derived from Fichte, who is its real author.