Your argument is philosophical rather than scientific - not that there is anything necessarily the matter with that, as long as you realise that it is so.
More seriously, it doesn't seem to be right. For example, gravity is an invisible force, and yet it is gravity which holds stars, galaxies, galaxy clusters and all the rest together. That seems a very central, and very invisible force. Of course Einstein taught us (in the Geeral Theory of Relativity) that gravity is just how we perceive the distortion of space-time causde by the presence of mass - and that distortion is certainly not visible, either.
The what about electro-magnetic radiation, which has a very important part to play in the universe, too. In what sense is it 'prominent? We can ourselves detect only a tiny fraction of the total spectrum (visible light), and much the same is true of the instruments we make. To either us or a radio telescope or an x-ray telescope, gamma rays are invisible, although very energetic.
In fact, I can't actually think of a physical force which is visible, other than (and even then only in some cases) mechanical force.
Maybe (judging by your 'additional details') that isn't what you mean. Maybe you mean that the effects of the force, rather than the force itself, should be visible - but then, aren't you just creating a tautology? The forces we deem to be the greatest are the ones with the most visible effects?