You are laboring under a number of false ideas. First, Lindsay’s website was the first I noticed being pro-LDS under the Google link I searched. I had read some of Lindsay’s work years ago, and though I am not a devotee, I certainly don’t think his apologetics is as weak as you make it out. Frankly, what I like most about his site is the way he mocks and ridicules in the most sublime fashion those who mock and ridicule him and his beliefs. I notice he also has made great pains to explain the work is his, that it is not the work of a professional, and that any errors of content are his responsibility. He certainly does not give me the impression of giving definitive answers.
Also, I did not give the impression that that particular page of his site was giving a ‘proof’ of Book of Mormon being in a specific location, but rather that there are legitimate scholars who believe the America’s have had contact other than Northern Europeans prior to CC. He even stated in his piece the asian connection.
Finally, those who came in ‘600 bc’ were not ‘Jews’, the most part of them were of Joseph, not Judah. Do I detect a little antisemitism?