There are some hints of it, and it's also shown in the animatrix that the machines tried very hard for peace, so it's also a reasonable interpretation as at lea

There are some hints of it, and it's also shown in the animatrix that the machines tried very hard for peace, so it's also a reasonable interpretation as at least part of the motivation. It's harder to see from the first film on its own, though, since the only real representative of the machines is Agent Smith, who absolutely detests humans, and is only later on revealed to be an abberation who becomes a threat to humans and machines alike (and of course none of the freed humans see it that way, even the traitor who wants to re-enter the matrix)