In other words, this road leads to an unbalanced federation of racial and ethnic groups distinguished by constitutional wrangling, deadlock, regional imbalance and a fixation with unworkable linguistic and cultural policies to the neglect of weightier matters such as the environment, the economy and international competitiveness.
Unbalanced federation of racial and ethnic groups neglect the most important matters such as the environment, the economy and international competitiveness.
The context never states the matters are the "most important", which we also don't know without wider context.
( z1 neglect :ARG0 ( z2 federation :cxnsistof ( z3 and :op ( z4 race ) :op ( z5 ethnic-group ) ) :ARG1-of ( z6 balance :polarity - ) ) :ARG1 ( z7 have-degree :ARG1 ( z8 matter :example ( z9 and :op ( z10 environment ) :op ( z11 economy ) :op ( z12 competitiveness :mod ( z13 international ) ) ) ) ) :ARG2 ( z14 important :ARG1 z8 ) :ARG3 ( z15 most ) )