Gods, no. We've had a thousand years of Abrahamic dominance already and that has been more than enough.
I'm fairly satisfied with the way things mostly seem to be headed now -- a basically secular, pluralist society where the majority are either explicitly or implicitly areligious, and there are many different religious minorities all coexisting peacefully. Adding some more Hindus to the mix shouldn't be a problem.
As it is, Islam is the largest minority religion here -- it has all of 2% of the population. But that only works if you count it as a single religion, in reality it is far from monolithic, either when it comes to theology or organization. There are many small-ish self-organized Muslim groups, mostly split by traditional ethnic lines (e.g. the Pakistanis don't hang out with the Turks much, the Iranians have their own groups and so do the Kurds, etc.)
The main line of any conflict lies not between Muslims and non-Muslims, nor between different ethnically or theologically demarked groups of Muslims, but rather between individuals or families within the same groups -- and such conflicts are mostly either continuations of old conflicts (familiy feuds etc. from the old country), or (and this is the biggie) caused by differing attitudes regarding tradition vs. modernization/integration. There's a notable and growing split between a conservative older generation and a (mostly) more liberal younger generation, plus some of the younger generation who go the other way and try to be even more conservative than their parents.
The very idea that such a relatively small and fragmented religious group (which is only becoming more diverse and fragmented with every passing year) could achieve political dominance at the cost of the other 98% of the population seems ludicrous at best. Even if naive linear extrapolation of current demographic trends were to prove correct and they wind up with more than 10% of the total population in some decades, those 10% will be found scattered on every side of every conceivable political question.