4 It could further be asserted that
the government and the economy as a whole cannot afford the enormous
cost involved in supporting childcare for working parents. However,
working parents actually contribute to the national economy. They are
able to utilise their productive skills and pay income tax, while non-working
parents can become a drain on the tax system through dependent spouse
and other rebates.
5 In conclusion, government support for childcare services assists individual families and is important for the economic well-being of the whole nation.
This is the introduction, which clearly states the main premise in the final sentence:
However, it is my contention that ... Note that two exponents of the counter-argument are acknowledged.