You seem to be arguing that small companies should have special dispensation versus large companies to circumvent immigration laws in order to lower their labor costs.
If you think small companies have a thumb on the scale, then give them a thumb on the scale. e.g. special tax incentives for hiring. And in fact small businesses do get thumbs on the scale from the government all the time. e.g. government solicitations favoring (by mandate) small and minority or female-owned businesses, SBA loans, etc. If you think they should get more, by all means argue that, but why at the expense of the US labor force?