How to find element in map where key is a shared_ptr?

I have a map of std::shared_ptr's for both key and value and I'm trying to find the right element. Below is what I have, though, it still has a problem and won't compile.

std::map<std::shared_ptr<MyObjA>, std::shared_ptr<ValObj>> aobjs;
std::map<std::shared_ptr<MyObjB>, std::shared_ptr<ValObj>> bobjs;

template <typename T>
int findit(T& t)
{
    T myobj = t;

    typename std::map<std::shared_ptr<T>, std::shared_ptr<ValObj>>::iterator it;

    if constexpr(std::is_same<T, net::MyObjB>::value) {
        net::MyObjB objB;
    
        // failing here ...
        auto it = std::find_if(bobjs.begin(), bobjs.end(), 
                [&](std::shared_ptr<MyObjB> const& p) {
            return *p == objB;
        });

        if (it != bobjs.end()) {
            // found it
        
            return 0;
        }
    }
    
    return -1;
}

I think the problem is with the first and last of the find_if returning the std::shared_ptr, but unsure. I got a ton of output that I've had trouble parsing ...

/usr/lib/gcc/x86_64-pc-linux-gnu/10.3.0/include/g++-v10/bits/predefined_ops.h: In instantiation of ‘constexpr bool __gnu_cxx::__ops::_Iter_pred<_Predicate>::operator()(_Iterator) [with _Iterator = std::_Rb_tree_iterator<std::pair<const std::shared_ptr<MyObjB>, std::shared_ptr<ValObj> > >; _Predicate = findit<MyObjB>::<lambda(const std::shared_ptr<MyObjB>&)>]’:
/usr/lib/gcc/x86_64-pc-linux-gnu/10.3.0/include/g++-v10/bits/stl_algobase.h:1912:42:   required from ‘constexpr _InputIterator std::__find_if(_InputIterator, _InputIterator, _Predicate, std::input_iterator_tag) [with _InputIterator = std::_Rb_tree_iterator<std::pair<const std::shared_ptr<MyObjB>, std::shared_ptr<ValObj> > >; _Predicate = __gnu_cxx::__ops::_Iter_pred<findit<MyObjB>::<lambda(const std::shared_ptr<MyObj>&)> >]’
/usr/lib/gcc/x86_64-pc-linux-gnu/10.3.0/include/g++-v10/bits/stl_algobase.h:1974:23:   required from ‘constexpr _Iterator std::__find_if(_Iterator, _Iterator, _Predicate) [with _Iterator = std::_Rb_tree_iterator<std::pair<const std::shared_ptr<MyObjB>, std::shared_ptr<ValObj> > >; _Predicate = __gnu_cxx::__ops::_Iter_pred<findit<MyObjB>::<lambda(const std::shared_ptr<ValObj>&)> >]’
/usr/lib/gcc/x86_64-pc-linux-gnu/10.3.0/include/g++-v10/bits/stl_algo.h:3934:28:   required from ‘constexpr _IIter std::find_if(_IIter, _IIter, _Predicate) [with _IIter = std::_Rb_tree_iterator<std::pair<const std::shared_ptr<MyObjB>, std::shared_ptr<ValObj> > >; _Predicate = findit<MyObjB>::<lambda(const std::shared_ptr<MyObjB>&)>]’

Thoughts?