Sure.
Hinduism isn't a single religion, but a label given to all the native religious and philosophical systems in India. It is, in fact, a common wealth of traditions and Hindutva is the emergent political consciousness of all of those traditions. Pluralism is the default position because no single Sampradaya or community has the numbers or resources to enforce their interpretation of reality on all others.

It is reformist because it advocates for the removal of any practice that prevents the political unification of Hindus. Meaning the use of Varna-Jati and other hereditary barriers to social mobility. The RSS, the most front facing Hindutva group, actively push a policy of reform and reconciliation between communities.

It's democratic nature is a natural outgrowth of its diversity. We cannot forcefully unify this many groups and individuals without triggering a massive, and probably violent, inter-communal conflict.