、。
Some people are crazy about that nostalgic feel, and others love originality.
Literal
Nostalgic [copula-な] feeling [subj-が] unbearably loved [copula-な] person [also-も] exist [and-し], originality [obj-を] love person [also-も] exist.
Parallel ~人もいるし...~人もいる structure introduces two types of people contrastively. たまらなく (the adverbial form of たまらない 'unbearable / irresistible') intensifies the following 好き — 'unbearably / crazy much.' ~もいる '(there) also are (people who)' is the existential frame for listing categories of people. ノスタルジック, a loan from 'nostalgic,' functions as a na-adjective (requires な before a noun).