By October’s second weekend, it was clear to everyone in town that an end to labor strife was somewhere in the unseeable distance.The MTA outage was in its fourth week. Daylong, rolling strikes closed King-Drew, the county‘s third busiest public hospital, and curtailed services at Harbor-UCLA, the number-two medical center. The increased confidence of county executive David Janssen at his Thursday and Friday media briefings symbolized the Board of Supervisors’ rising rectitude as they held fast to a 9 percent final wage-increase offer — less than 60 percent of the 15.5 percent demanded by Service Employees International Local 660. Janssen said this week‘s countywide walkout was ”not inevitable.“ But he threw a very hard pitch when he said there would be no negotiations until the rolling strikes stopped. He said that the county would agree to negotiate if SEIU canceled the general strike. The union responded that without a return to the table, the big strike was on.